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ANAHUAC NWR – Winnie Depot HVAC EVALUATION & REPLACEMENT DESIGN

CHAMBERS COUNTY, TEXAS 2022

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SECTION C - PERFORMANCE WORK STATEMENT

1.1 SUMMARY

A. GENERAL DESCRIPTION OF WORK REQUIRED IN THIS CONTRACT: The Fish and Wildlife Service, Region 2 requires the following Task 1 and Task 2 for professional Architectural/Engineering design services:

1. Task #1: Evaluate the existing HVAC systems for the following buildings at the Winnie

Depot complex and provide an Evaluation/Findings Report documenting recommendations for modifying/replacing the existing HVAC systems to improve their thermal performances of spaces served and improve maintenance serviceability:

a. Office

b. Maintenance Shop

c. Training Center

d. Bunkhouse Refer to paragraph 1.3 below for additional project background, history and operational issue information.

2. Task #2 –Provide stamped contract bidding documents (ie plans, specification, cost estimates, etc) for:

a. Replacing the existing Variable Refrigerant Flow/Volume (VRF/V) HVAC system in the office building as agreed upon after the Task I evaluation.

b. Replacing or modifying the HVAC system serving the Shop building’s air conditioned spaces as agreed upon after the Task I evaluation.

c. Replacing or modifying the VRF/V HVAC system serving the Training Center as agreed upon after the Task I evaluation.

d. Replacing or modifying the VRF/V HVAC system serving the Bunk House as agreed upon after the Task I evaluation

B. ADDITION SPECIFIC END OF PROJECT REQUIREMENTS.

1. All HVAC systems at the Winnie Depot shall be serviceable from an authorized HVAC contractor within 50 miles of the Winnie TX. Before submitting a final pay request, provide a list of recommended authorized service contractors to the project CI and COR that can perform all recommended annual preventative maintenance actions and perform semi-annual operational checks to ensure proper seasonal operations.

2. After commissioning each HVAC system replaced, each replacement HVAC systems shall demonstrate (and Document) it can be maintain the space served at 74°F +/-2°F while maintaining the space’s relative humidity at 50% +/-5% for 72 hours during the middle of summer operations.

3. After commissioning each HVAC system replaced, each replacement HVAC systems shall demonstrate (and Document) it can be maintain the space served at 72°F +/-2°F for 72 hours during the middle of winter operations.

4. All new system’s shall provide ASHRAE recommendations using MERV-13 air filtering system and Outside Dilution/Ventilation Air for minimizing COVID transmissions in buildings.

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5. All systems shall have special Coastal Environmental Protection for all HVAC equipment installed outside to prevent corrosion and pre-mature equipment failures.

6. Operational controls of all New HVAC Systems shall have control systems that is supported by and maintainable by the same HVAC equipment manufacture to eliminate third party finger pointing at other manufacturers claiming other manufactures components are the causing HVAC operational problems.

7. The current Schneider centralized Building Automation System (BAS) may be modified and used for monitoring various building systems only; it shall NOT be used to control any HVAC equipment.

8. New HVAC equipment and controls shall have replacement parts and maintenance components readily available that will prevent long HVAC downtimes.

C. WORK LOCATION: The work site is located at the FWS Winnie Depot, 1035 W. Buccaneer Dr. Winnie, TX (29°48’15”N Latitude X 94°24’15”WLongitude).

D. REFUGE CONTRACT INFORMATION:

1. The Refuge Complex Manager, Tim Cooper, can be contacted at telephone number 409-

267-3337.

2. The Refuge Facilities Manager, Steve Baker, can be contacted at telephone number 409-

284-9459.

E. SITE VISIT: A site visit will be scheduled by the Government’s Contracting Officer (CO) after a contract award is awarded.

1.2 PROFESSIONAL ENGINEERING SERVICES:

A. Provide a full range of professional engineering services (architectural, mechanical, electrical, civil and structural) to analyze the existing Variable Refrigerant Flow/Volume (VRF/V) HVAC and control systems to prepare a systems evaluation report and to develop fully engineered construction documents for government contracting purposes for approved systems identified in the Task 1 Evaluation/Findings Report.

B. Designs shall incorporate the following codes and standards

1. American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE)

Standard 62 (2016) -Ventilation for Acceptable Indoor Air Quality.

2. American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE)

Standard 55 (2017) –Thermal Environmental Conditions for Human Occupancy Comfort

3. National Fire Protection Association-NFPA 90A – Standard for Installation Air-

Conditioning and Ventilating System

4. National Fire Protection Association-NFPA- 101 - Life Safety Code

5. International Mechanical Code - Version 2015

6. International Energy Conservation Code - Version 2015.

7. National Electric Code – Version 2017 (NFPA 70)

C. The required services shall include preparing and developing the specified deliverables in paragraph 1.6 "DELIVERABLES” below which consists of developing contract plans, PROFESSIONAL SERVICES SCOPE OF WORK DSOW-3 specifications, and cost estimates to provide clear descriptions for the work specified in paragraph 1.4 “PROJECT SCOPE OF WORK”.

D. The Final Deliverable Package shall bear the stamp of a Texas State registered professional engineer.

1.3 BACKGROUND/HISTORY/REFERENCES:

A. HISTORY: The Winnie Depot Facility was constructed in between 2010-2014 after multiple hurricanes, which motivated the construction of this complex further in-land. The facility has five building used for various operations and six storage facilities (buildings and covered equipment sheds). HVAC system are install in only the five operations building (Residence, Bunkhouse, Training Building, Office Building, and Maintenance/Shop Building).

B. BACKGROUND/ISSUES:

1. The current VRF/V HVAC systems have not provided satisfactory indoor temperature and humidity control which has led to mold issues in several buildings.

2. When a VRF/V HVAC system fails, the refuge has lots of difficulty finding local, qualified service technicians that is knowledgeable in VFR HVAC systems and their controls to make the appropriate repairs in a timely manner.

3. The facility has had an unusual amount of and significant HVAC down time due numerous refrigerant leaks in the various VRF/V HVAC systems which are hard to find and repair.

4. Most of the exterior HVAC equipment has lots of corrosion due to the salty, coastal environment.

5. Most of the existing heat recovery units have not been effective and are contributing high building humidity levels.

6. The facility has had numerous prolonged HVAC operational problems due to various service/repairmen finger-pointing claiming HVAC problems is caused by the building automation system manufacturer’s equipment, or the some electrical equipment component, or the HVAC equipment manufacture.

7. The facility has had numerous HVAC system shutdowns for extraordinary long periods because replacement parts were not available in the US and they had to be obtain from other countries.

C. REFERENCE DRAWINGS: The refuge has paper copies of the most current facility As-built drawings. Contact the facility manager about getting copies of the facility As-Built drawings after a contact award is made.

D. LOCAL UTILITY CONTACT INFORMATION: Contact the refuge administration to obtain information on the local utility company serving the complex.

1.4 PROJECT SCOPE OF WORK:

A. Task 1: Professional System Analysis and Recommendation (25% Design)

1. Visit site and evaluate existing HVAC systems and conditions for all four buildings.

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2. Efforts should be made to replace existing HVAC systems and controls with different type system to improve performance, maintainability and service life.

3. Submit a report of existing HVAC conditions and recommendations to resolve the issues and problems identified in site visit evaluation and the background issues listed in paragraph 1.3B above and comply with the specific project requirements listed in paragraph 1.1B above.

4. Obtain the required utility energy and cost data from the refuge to summarize one typical year’s energy consumption and energy cost for each complex building.

5. Provide a 25year Life Cycle Cost Comparison Analysis (LCCA) for the types of proposed replacement HVAC systems from which the government will choose one to continue with Task 2 design. Each system described shall include replacing the HVAC equipment and control system to ensure all components work as one system.

6. The LCCA shall include the following for each type of system:

a. First costs to construct a fully functional building HVAC system.

b. Energy consumption and energy cost including fuel escalation.

c. Anticipated Periodic (Non Annual) Maintenance costs.

7. Provide a general condition report and recommendations to improve the thermal performance and maintainability for each of the four building listed in paragraph 1.1-A1.

This shall include a general description of the added advantages the refuge should obtain if the recommendations are implemented.

8. Provide the government a professional recommendations summary report on how to proceed with Task 2 design for the facility office building. The report shall contain the following for each system:

a. A short description of the HVAC and control system proposed.

b. The 25 year LCCA report.

c. Typical Annual energy consumption and energy cost projection.

d. Approximate installed cost for each system.

e. Advantages and Disadvantages for each type system.

f. Describe the various annual maintenance requirements and costs for each type system.

g. Describe the possible periodic maintenance task and cost for each type system.

h. The proposed maintenance support contractor to provide refuge with the required maintenance support to provide the full HVAC equipment service life.

i. Anticipated Annual and periodic Maintenance costs.

9. The government will evaluate the recommendations report and will decide what type of system that will be beneficial to the government. The CO will provide written direction on which system to proceed with the Task 2 Design portion of the project.

B. Task 2 - Professional services (25%-99%) shall include but not limited to the following:

1. The new HVAC system shall comply with applicable sections of the referenced

International Codes and NFPA Standards.

2. Re-Evaluate existing HVAC Zone’s heat loads to ensure proper HVAC performance for the new systems. Clearly show the appropriate needed changes on the drawings. The HVAC zones shall provide appropriate human comfort to all areas as required by

ASHRAE 55.

3. HVAC zones shall have new programmable/adjustable temperature set-back controls to provide space comfort and conserve energy during unoccupied periods.

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4. New HVAC system shall incorporate any existing building fire alarm detection or special operational requirements. Clearly show these requirements on the drawings and the specifications.

5. New HVAC system shall comply with the appropriate outside air ventilation requirements specified in ASHRAE 62.

6. Select new HVAC equipment that can be maintained/serviced from local HVAC Service providers located with 50 miles of the Winnie, TX.

7. New HVAC equipment performance and operating requirements shall be shown on appropriate HVAC equipment schedules.

8. HVAC drawings shall show new equipment layout and installation details. The new equipment layout shall show sufficient space for all future maintenance operations and required code clearance such as NEC 110.

9. Clearly describe the new HVAC operational control requirements. This shall include a clear statement of the controls sequence of operation. The building controls shall ensure all HVAC equipment operates as a unified building HVAC system.

10. Provide clear description of all required electrical changes and/or modifications for the new equipment. Specify all electrical work shall be performed by an authorized Texas electrician complying with the NEC.

11. Include testing, balancing and commissioning requirement specification.

1.5 PERIOD OF PERFORMANCE:

A. Performance time begins the day after the receipt of the Notice of Award. The performance time is estimated to be 180 calendar days: 90 days for Task 1 and 90 days for Task 2.

1.6 DELIVERABLES

A. Project Deliverables shall consist of the following:

1. Task 1: Evaluation Report with Recommendations and preliminary Cost estimates for each of the four buildings.

2. Task 2:

a. Provide biding document (Drawings, Specification, and detailed Cost Estimates) for replacing the VRF/V HVAC system for the Office Building.

b. Provide biding document (Drawings, Specification, and detailed Cost Estimates) for replacing/modifying the HVAC system for the Shop Building.

c. Provide biding document (Drawings, Specification, and detailed Cost Estimates) for replacing the VRF/V HVAC system for the Training Center Building.

d. Provide biding document (Drawings, Specification, and detailed Cost Estimates) for replacing the VRF/V HVAC system for the Bunk House Building.

B. GENERAL DELIVERABLE INFORMATION:

1. All deliverables shall be delivered to the designated government Contracting Officer’s

Representative (COR) for review and approval and provide a copy to the Contracting Officer. Deliverables shall be emailed to the designated government CO/COR, electronic (PDF) drawings, specification, shop drawings and etc. After reviewing the submittals, the

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CO/COR will electronically return the appropriate comments and/or approvals to the contractor’s designated project manager.

2. Allow at least 10 working days for review.

3. Drawings:

a. All Drawings shall be prepared in electronic AutoCAD formatted for 11" x17"

(Ledger Size) paper drawings. The Government will furnish official drawing borders and title block information in AutoCAD format. All drawings are to be prepared using the 2019 version of AutoCAD software.

b. Review Drawings shall be furnished in PDF format for 11" x17" (Ledger Size paper drawings. Review Drawings shall have a “DRAFT” watermark on each drawing sheet.

c. Final drawing delivery requirements: Provide both electronic AutoCAD format and one copy in PDF format without “Draft” watermark and shall bear state professional stamps on appropriate pages.

4. Specifications:

a. Specifications shall be prepared in the current Masterworks format using Microsoft

Word.

b. Review specifications shall have a “Draft” watermark on every page.

c. Final specification package shall be submitted in PDF format with no watermark.

5. Probable Project Cost Estimates:

a. Shall be prepared in Excel Format.

b. Cost Estimate Item to be included:

1) Material Description

2) Quantity (Number of Units) of Material

3) Labor hours to install one Unit of Material

4) Labor Cost to install one Unit of Material

5) Unit Cost of Materials

6) Extended cost of Materials.

7) Extended Cost of Labor

8) Total cost of Material and Labor

9) Project Total Cost of all Materials and Labor

c. Email both Excel file and PDF format file.

END OF SCOPE OF WORK

E. SITE VISIT: A site visit will be scheduled by the Government’s Contracting Officer (CO) after a contract award is awarded.

9. The government will evaluate the recommendations report and will decide what type of system that will be beneficial to the government. The CO will provide written direction on which system to proceed with the Task 2 Design portion of the project.

c. Email both Excel file and PDF format file.